Xun Yu (荀彧) was one of Cao Cao's greatest advisors during the Three Kingdoms period in ancient China. Cao Cao (155 – 220) was a regional warlord who rose to great power during the last years of the Eastern Han Dynasty in ancient China. ... The Three Kingdoms period (Simplified Chinese: 三国; Traditional Chinese: 三國; Pinyin Sānguó) is a period in the history of China. ...

Xun Yu was responsible for much invaluable advice given to Cao Cao. He joined Cao Cao's service with his relative Xun You; both were recruited and became advisors. Xun Yu gave much good advice at the Battle of Guandu against Yuan Shao, ultimately leading to the great leader's defeat. Cao Cao praised him heavily. The introduction of this article does not provide enough context for readers unfamiliar with the subject. ... The Battle of Guandu (官渡之戰) was a battle in Chinese history. ...

Xun Yu met an untimely end when he became ill in the established kingdom of Wei. He was suspicious of Cao Cao's motives when the leader summoned Xun Yu to court one day. Xun feigned illness and stayed home, whereupon Cao Cao sent him a 'gift'. When Xun Yu opened the box, he found it to be empty. The great advisor took the hint, drank poison and died. The Kingdom of Wei (ch. ...